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Finding the Fourth Proportional to 584,706.60, 806,895.15 and 316,434.60

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Solution

The fourth proportional to 584,706.60, 806,895.15 and 316,434.60 is: 436,679.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,706.60 : 806,895.15 = 316,434.60 : x
  2. Step 2: Convert to fraction form
    584,706.60/806,895.15 = 316,434.60/x
  3. Step 3: Cross multiply
    584,706.60x = 806,895.15 × 316,434.60
  4. Step 4: Simplify right side
    584,706.60x = 255,329,539,997.71
  5. Step 5: Solve for x
    x = 255,329,539,997.71/584,706.60
  6. Step 6: Final answer
    x = 436,679.77

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.